/*
 * Copyright (c) 2010-2014 Evolveum
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.evolveum.midpoint.notifications.impl.helpers;

import com.evolveum.midpoint.notifications.api.NotificationManager;
import com.evolveum.midpoint.notifications.api.events.Event;
import com.evolveum.midpoint.notifications.api.events.ModelEvent;
import com.evolveum.midpoint.schema.result.OperationResult;
import com.evolveum.midpoint.task.api.Task;
import com.evolveum.midpoint.util.logging.Trace;
import com.evolveum.midpoint.util.logging.TraceManager;
import com.evolveum.midpoint.xml.ns._public.common.common_3.EventHandlerType;
import org.springframework.stereotype.Component;

import javax.xml.namespace.QName;

/**
 * @author mederly
 */
@Component
public class FocusTypeFilterHelper extends BaseHelper {

    private static final Trace LOGGER = TraceManager.getTrace(FocusTypeFilterHelper.class);

    @Override
    public boolean processEvent(Event event, EventHandlerType eventHandlerType, NotificationManager notificationManager, 
    		Task task, OperationResult result) {

        if (eventHandlerType.getFocusType().isEmpty()) {
            return true;
        }

        if (!(event instanceof ModelEvent)) {
            return true;            // or should we return false?
        }
        ModelEvent modelEvent = (ModelEvent) event;

        logStart(LOGGER, event, eventHandlerType, eventHandlerType.getStatus());

        boolean retval = false;

        for (QName focusType : eventHandlerType.getFocusType()) {
            if (focusType == null) {
                LOGGER.warn("Filtering on null focusType; filter = " + eventHandlerType);
            } else if (modelEvent.hasFocusOfType(focusType)) {
                retval = true;
                break;
            }
        }

        logEnd(LOGGER, event, eventHandlerType, retval);
        return retval;
    }
}